HMD / Nokia
Nokia 2780 Flip
The default US flip phone. KaiOS, VoLTE, and a removable battery.
Secondhand Cheap entry points
$90
$89.99 at launch; street prices vary widely
- TypeFlip
- SoftwareKaiOS
- Screen2.7" LCD
- Network2G / 3G / 4G
- Introduced 2022
Software and apps
- Operating system
- KaiOS 3.1
- App store
- Curated apps
- Web browser
- Yes
- Yes
- Sideloading
- No
- No
- Spotify
- No
- Podcasts
- Unknown
- Apple Music
- No
- Your own MP3s
- Yes
- RCS messaging
- No
- Group texts
- Yes
- Android Auto
- NoKaiOS is not Android.
- Maps
- Unknown
Hardware
- Form factor
- Flip (dual screen)
- Screen
- 2.7 in internal LCD at 320x240 QVGA plus a 1.77 in 160x128 QQVGA external screen
- Camera
- Yes
- Battery
- 1,450 mAh user-replaceable
- USB-C
- Yes
- Headphone jack
- Yes
- Weight
- 131 g
Connectivity
- Network
- 2G / 3G / 4GLTE Cat 4, 150Mbps down and 50Mbps up. HMD also publishes GSM and WCDMA bands, though it is sold and marketed as a 4G phone.
- VoLTE
- Yes
- SIM
- Physical SIM + microSDSingle nano-SIM. HMD quotes every talk and standby figure for single-SIM use.
- Wi-Fi hotspot
- Yes
- Bands
- GSM 850/900/1800/1900 | WCDMA 2/4/5 | LTE B2, B4, B5, B7, B12, B13, B17, B25, B26, B41 (HPUE), B66, B71
- Works on
- AT&T, T-Mobile, Verizon
- Carriers
- Launched through AT&T, Verizon and T-Mobile; also sold unlocked
Where to get one
- Regions
- United States
- Countries
- United States
- Amazon
- amazon.comAffiliate link, and a search rather than one listing, because the sellers change. Buying through it pays this site a commission at no extra cost to you.
- Also sold at
- Amazon; US Mobile ($94 upfront); carrier stores
Notes
KaiOS 3.1 gives you the KaiStore and a browser with a real address bar, but WhatsApp never came to this generation of KaiOS. HMD has dropped it from the line-up. The box contents list says Micro USB and the port is Type-C.
Last updated September 16, 2026.
